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71 lines
2.5 KiB
71 lines
2.5 KiB
/*
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MIT License
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Copyright (c) 2018, Alexey Dynda
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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/**
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* @file vga_commands.h VGA library commands definitions
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*/
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#ifndef _VGA_COMMANDS_H_
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#define _VGA_COMMANDS_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** VGA driver commands */
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enum EVgaCommands
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{
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/**
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* VGA_SET_BLOCK command sets rectangle in VGA ram to send pixels to.
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* The command needs 4 byte-arguments:
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* left boundary in pixels,
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* right boundary in pixels,
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* top boundary in pixels,
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* bottom boundary in pixels, (last arg in not implemented yet)
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*/
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VGA_SET_BLOCK = 0x01,
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/**
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* VGA_SET_MODE command sets memory addressing mode: there are 2 modes
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* available: 0 - normal addressing mode, 1 - ssd1306 compatible mode.
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* After sending each pixel in normal addressing mode, x position shifts
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* right by 1 pixel until end of block is reached, then y position shifts
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* down by 1 pixel, and x position move to the start of block.
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* After sending each pixel in ssd1306 compatible mode, y position shifts
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* down by 1 pixel until 8 vertical pixels are printed, then y position changes
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* to top of block, and x position shifts right by 1 pixel.
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*/
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VGA_SET_MODE = 0x02,
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VGA_SET_RESOLUTION = 0x03,
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VGA_DISPLAY_ON = 0x04,
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};
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#ifdef __cplusplus
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}
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#endif
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// ----------------------------------------------------------------------------
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#endif
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